/*
 *所有关于cw_djlc_analyze类的业务代码应在此处编写
*可使用repository.调用常用方法，获取EF/Dapper等信息
*如果需要事务请使用repository.DbContextBeginTransaction
*也可使用DBServerProvider.手动获取数据库相关信息
*用户信息、权限、角色等使用UserContext.Current操作
*cw_djlc_analyzeService对增、删、改查、导入、导出、审核业务代码扩展参照ServiceFunFilter
*/
using VOL.Core.BaseProvider;
using VOL.Core.Extensions.AutofacManager;
using VOL.Entity.DomainModels;
using System.Linq;
using VOL.Core.Utilities;
using System.Linq.Expressions;
using VOL.Core.Extensions;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.AspNetCore.Http;
using VOL.Finance.IRepositories;
using System;
using System.Collections.Generic;

namespace VOL.Finance.Services
{
    public partial class cw_djlc_analyzeService
    {
        private readonly IHttpContextAccessor _httpContextAccessor;
        private readonly Icw_djlc_analyzeRepository _repository;//访问数据库

        [ActivatorUtilitiesConstructor]
        public cw_djlc_analyzeService(
            Icw_djlc_analyzeRepository dbRepository,
            IHttpContextAccessor httpContextAccessor
            )
        : base(dbRepository)
        {
            _httpContextAccessor = httpContextAccessor;
            _repository = dbRepository;
            //多租户会用到这init代码，其他情况可以不用
            //base.Init(dbRepository);
        }

        public override PageGridData<cw_djlc_analyze> GetPageData(PageDataOptions options)
        {
            SummaryExpress = (IQueryable<cw_djlc_analyze> queryable) =>
            {
                return (queryable as IQueryable<cw_djlc_analyze>).GroupBy(x => 0).Select(x => new
                {
                    //AvgPrice注意大小写和数据库字段大小写一样
                    oldprice = x.Sum(o => o.oldprice),
                    newprice = x.Sum(o => o.newprice)
                }).FirstOrDefault();
                
            };
            return base.GetPageData(options);
        }
    }
}
